<html>
  <body>
    <div style="height: 500px"></div>
  </body>

  <script>
    window.moveTrack = ''

    document.onmousemove = (e) => {
      if (e.clientX === 0 && e.clientY === 0) return
      window.moveTrack += ' move ' + e.clientX + ' ' + e.clientY
    }
  </script>
</html>
